std::packaged_task<R(Args...)>::get_future
< cpp | thread | packaged task
|
std::future<R> get_future();
|
(since C++11) | |
Returns a future which shares the same shared state as *this.
get_future can be called only once for each packaged_task.
Parameters
(none)
Return value
A future which shares the same shared state as *this.
Exceptions
std::future_error on the following error conditions:
- The shared state has already been retrieved via a call to
get_future. The error category is set to future_already_retrieved. - *this has no shared state. The error category is set to no_state.